Two New Species Of The Genus Eupyrgops Berg, 1898 (Coleoptera: Curculionidae: Celeuthetini) From The Luzon Island (Philippines)
Author
Bramanti, Alessandro
Author
Bramanti, Andrea
Author
Rukmane-Bārbale, Anita
text
Acta Biologica Universitatis Daugavpiliensis
2020
20
2
147
153
journal article
10.5281/zenodo.10979977
1407-8953
10979977
Eupyrgops sabatiensis
sp. nov.
(
Fig. 3.1 – 3.4
,
4.1 – 3.4
,
6
, 8)
Type material.
Holotype
.
Male
:
PHILIPPINES
/
Luzon
,
Aurora prov.
,
San Luis
,
Ditumabao
/
IX. 2017
/ local collector leg. (white label) //
HOLOTYPE
/
Eupyrgops sabatiensis
/
Bramanti
&
Bramanti
2020 (red label) (
BRAA
)
.
Paratypes
(
1 male
,
8 female
):
1 female
,
8. Distribution map of
E. mitoraji
sp. nov.
and
E. sabatiensis
sp. nov.
151
Description.
Male. Body length: 13.1; width: 6.2. Integument black, legs, head and antenna strongly shiny, prothorax and elytra with weaker luster, with markings of turquoise round to recumbent scales.
Head strongly pubescent, punctured, with longer light hairs between eyes. Forehead with longitudinal medial groove, slightly impressed dorsally, without general scales; clearly divided from the rostrum by a transverse groove. Eyes small, three times as wide as forehead, strongly prominent from the outline of the head, peak just at the middle. Rostrum with moderate dorsal bulge. Antenna rather thin, mingled with short light hairs; antennomers I-II subequal in size, twice as long as wide, slightly longer than each of antennomer III-VII; antennomers III-VII subequal in size, longer than wide; club slender, three times as long as wide.
Prothorax with very strong puncture, each dot mingled with short yellowish hair. With the following scally markings: 1) large longitudinal patch at each lateral part of prothorax; 2) two roundish dots on disc slightly after the middle, dots might be absent in some specimens; 3) large patch from each lateroventral part to underside. In dorsal contour raised from base, widest just before the middle, then gradually narrowed to apical ½ and nearly straight to apical margin. Slightly longer than wide (
LP
/
WP
1.05).
Elytra very strongly punctured, with rugose undefined puncture rows; with short yellowish hairs in all length. Each elytron with various number of irregularly arranged irregularly ovate scally patches that vary in size and one additional longitudinal band along lateral margin in all length. Elytra ovate, moderately convex (
WE
/
LE
0.71) in dorsal contour widest just at the middle, then strongly narrowed to subapical constriction. Femur mingled with short light hairs in all length; moderately widened along medial portion; with scally patch along internal delay. Male genitalia as illustrated in
Fig. 6.1 – 6.3
.
Female. Much bigger than male. Prothorax in dorsal view slightly widened from constricted
152
base to basal 1/3, then impressed along basal 1/3, then more strongly raised and rounded to middle, widest just after the middle, then narrowed to apical 1/3, impressed, then straightened to apical margin; apices of elytra very strongly expressed, WE/LE 0.77. Genitalia as illustrated in
Fig. 6.4 – 6.6
. Otherwise essentially as in males.
Differential analyses.
Neverless hight similarity of
E. sabatiensis
sp. nov.
to
E. waltonianus
Adams, 1848
(
Fig. 5.1, 5.4
) we decided to separate these two geographically distinct species by following morphological differences: 1) specific shape of prothorax in females of
E. sabatiensis
sp. nov.
, prothorax of
E. waltonianus
Adams, 1848
is less arched along medial portion and without expressed impression along basal and apical 1/3; 2) forehead of
E. waltonianus
Adams, 1848
wider, three times as wide as eye width instead of two times in
E. sabatiensis
sp. nov.
; 3) apices of
E. sabatiensis
sp. nov.
more strongly expressed, more gradually delayed in dorsal contour; 4) lateral contour of elytra in
E. sabatiensis
sp. nov.
more rounded than in
E. waltonianus
.
Etymology.
The new species is named in honour of good friend of first two authors Jan-Paul Sabatie.